SPACI score report for 2a6e in ASTRAL 1.75:

PDB Entry: 2a6e
SPACI score: 0.14
AEROSPACI score: 0.14

Experiment type: XRAY
Resolution: 2.8
R-factor: 0.231
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 3
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -3.677
WCK2 WHAT_CHECK Ramachandran: -5.634
WCK3 WHAT_CHECK Chi angles: -6.7
WCK4 WHAT_CHECK Backbone: -2.831

Note: Here are links to pages about PROCHECK and WHAT_CHECK.

Here is the full WHAT_CHECK report on this protein (linked from the WHAT_CHECK site).